/// <summary>
/// 根据结构体成员标注的特性对结构体值的字节数组进行字节翻转
/// </summary>
private static byte[] RespectEndianness(byte[] bytes, Type type)
{
FieldInfo[] fields = type.GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
foreach (FieldInfo field in fields)
{
if (field.IsDefined(typeof(EndianAttribute), false) && Marshal.SizeOf(field.FieldType) > 1)
{
EndianAttribute endianattr = (EndianAttribute)field.GetCustomAttributes(typeof(EndianAttribute), false)[0];
if ((endianattr.Endian == Endianness.BigEndian && BitConverter.IsLittleEndian) || (endianattr.Endian == Endianness.LittleEndian && !BitConverter.IsLittleEndian))
{
int mag = 1;
if (field.IsDefined(typeof(MarshalAsAttribute), false) && field.GetType().IsArray)
{
MarshalAsAttribute marshalattr = (MarshalAsAttribute)field.GetCustomAttributes(typeof(MarshalAsAttribute), false)[0];
mag = marshalattr.SizeConst > 1 ? marshalattr.SizeConst : 1;
}
for (int i = 0; i < mag; i++)
{
Array.Reverse(bytes, Marshal.OffsetOf(type, field.Name).ToInt32() + (i * Marshal.SizeOf(field.FieldType)), Marshal.SizeOf(field.FieldType));
}
}
}
}
return(bytes);
}
private static void RespectEndianness(Type type, byte[] data)
{
foreach (FieldInfo f in type.GetRuntimeFields())
{
if (f.IsDefined(typeof(EndianAttribute), false))
{
EndianAttribute att = (EndianAttribute)f.GetCustomAttributes(typeof(EndianAttribute), false).GetEnumerator().Current;
int offset = Marshal.OffsetOf(type, f.Name).ToInt32();
if ((att.Endianness == Endianness.BigEndian && BitConverter.IsLittleEndian) ||
(att.Endianness == Endianness.LittleEndian && !BitConverter.IsLittleEndian))
{
Array.Reverse(data, offset, Marshal.SizeOf(f.FieldType));
}
}
}
}
